55725522 has 16 divisors (see below), whose sum is σ = 111981792. Its totient is φ = 18486720.

The previous prime is 55725521. The next prime is 55725529. The reversal of 55725522 is 22552755.

55725522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55725521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20743 + ... + 23274.

It is an arithmetic number, because the mean of its divisors is an integer number (6998862).

Almost surely, 2^55725522 is an apocalyptic number.

55725522 is an abundant number, since it is smaller than the sum of its proper divisors (56256270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55725522 is a wasteful number, since it uses less digits than its factorization.

55725522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44233.

The product of its digits is 35000, while the sum is 33.

The square root of 55725522 is about 7464.9529134483. The cubic root of 55725522 is about 381.9601440468.

The spelling of 55725522 in words is "fifty-five million, seven hundred twenty-five thousand, five hundred twenty-two".